Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / arm / include / asm / arch-exynos / pinmux.h

diff --git a/qemu/roms/u-boot/arch/arm/include/asm/arch-exynos/pinmux.h b/qemu/roms/u-boot/arch/arm/include/asm/arch-exynos/pinmux.h
new file mode 100644 (file)
index 0000000..0b91ef6
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arm/include/asm/arch-exynos/pinmux.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics
+ * Abhilash Kesavan <a.kesavan@samsung.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#ifndef __ASM_ARM_ARCH_PINMUX_H
+#define __ASM_ARM_ARCH_PINMUX_H
+
+#include "periph.h"
+
+/*
+ * Flags for setting specific configarations of peripherals.
+ * List will grow with support for more devices getting added.
+ */
+enum {
+       PINMUX_FLAG_NONE        = 0x00000000,
+
+       /* Flags for eMMC */
+       PINMUX_FLAG_8BIT_MODE   = 1 << 0,       /* SDMMC 8-bit mode */
+
+       /* Flags for SROM controller */
+       PINMUX_FLAG_BANK        = 3 << 0,       /* bank number (0-3) */
+       PINMUX_FLAG_16BIT       = 1 << 2,       /* 16-bit width */
+};
+
+/**
+ * Configures the pinmux for a particular peripheral.
+ *
+ * Each gpio can be configured in many different ways (4 bits on exynos)
+ * such as "input", "output", "special function", "external interrupt"
+ * etc. This function will configure the peripheral pinmux along with
+ * pull-up/down and drive strength.
+ *
+ * @param peripheral   peripheral to be configured
+ * @param flags                configure flags
+ * @return 0 if ok, -1 on error (e.g. unsupported peripheral)
+ */
+int exynos_pinmux_config(int peripheral, int flags);
+
+/**
+ * Decode the peripheral id using the interrpt numbers.
+ *
+ * @param blob  Device tree blob
+ * @param node  FDT I2C node to find
+ * @return peripheral id if ok, PERIPH_ID_NONE on error
+ */
+int pinmux_decode_periph_id(const void *blob, int node);
+#endif